42421006 has 16 divisors (see below), whose sum is σ = 64665216. Its totient is φ = 20868856.

The previous prime is 42421003. The next prime is 42421013. The reversal of 42421006 is 60012424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42421003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35145 + ... + 36331.

It is an arithmetic number, because the mean of its divisors is an integer number (4041576).

Almost surely, 2^42421006 is an apocalyptic number.

42421006 is a deficient number, since it is larger than the sum of its proper divisors (22244210).

42421006 is a wasteful number, since it uses less digits than its factorization.

42421006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 42421006 is about 6513.1410241142. The cubic root of 42421006 is about 348.7602560329.

The spelling of 42421006 in words is "forty-two million, four hundred twenty-one thousand, six".